Wiper for cleaning the surfaces of engraved plates when printing therefrom.



No. 731,334. PATBNTED JUNE 16, 1903.

P. E. BLAISDELL. WIPER FOR CLEANING THE SURFACES OF ENGRAVED PLATES WHEN PRINTING THEREPROM.

APPLICATION FILED NOV. 24, 1902.

N0 MODEL.

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FREDERICK E. BLAISDELL, OF EALING, ENGLAND.

WIPER FO R CLEANING THE SURFACES OF ENGRAVED PLATES WHEN PRINTING THEREFROIVI.

SPECIFICATION forming part of Letters Patent No. 731 ,334, dated June 16, 1903.

Application filed N0ven1'ber 24 1902. Serial 11111321623. (No model.)

To rtlZ whom it may concern;

Be it known that I, FREDERICK ELIJAH BLAISDELL, manufacturer, a citizen of the United States of America, residing at Ealing, in the county of Middlesex, England, have invented certain new and useful Improvements in Wipers for Cleaning the Surfaces of Engraved Plates when Printing Therefrom, of which the following is a specification.

This invention relates to an improved wiper for removing superfluous ink or color from the surfaces of engraved plates. I-Ieretofore it has been usual to remove the superfluous ink or color from the engraved plate by means of a belt or strip of material more or less absorbent for example, papertraveling across the engraved plate. The use of such materialfor cleaning engraved plates is not advantageous, since the ink or color wiped off the plate can only be partially recovered, besides which the paperitself is wasted, and, moreover, portions of the fiber of the paper or other material are liable to become detached while the die is passing over it, and so injure the impression.

According to myinvention I provide a wiper made of a material which isimpervious to the ink or colors used in printing from engraved plates and to the solvents of such ink or colors and which, moreover, contains no fiber and allows of the ink or color being readily removed from it.

In the accompanying drawings, Figure 1 represents a portion of a wiper-band madetremely thin, I provide the required strength by superposing on each other several layers of the membrane, as indicated in Fig. 1, a a a a denoting four layers, and, if desired, uniting them by pressure or by a suitable adhesive, thus forming a belt or strip of appreciable thickness which can be employed in the same manner as the paper or like belts or strips commonly used for wiping engraved plates. Said strip may be conveniently made up into an endless belt for the purpose of my invention. In some cases I use the aforesaid membrane as a facing for a belt or strip of tanned leather, textile fabrics, rubber, or the like, as shown inFig. 2, A denoting the layer or layers; of membrane, and B the backing. The said membrane is used in a raw or undressed state and provides a strong impervious material capable of resisting the action of the solvents for the inks and colors used in printing, and which, with the hard wear to which wipers are subjected in use, is only little worn away. Said membrane also possesses a smooth surface, which is eminently adapted for the required purpose.

What I claim is- 1. -As a new article of manufacture, a Wiper for engraved plates composed of a raw, that is, untreated material which isimpervious to the solvents of ink or colors used in printing.

2. As a new article of manufacture, a wiper for engraved plates composed of the raw mucous membrane of animals.

3. As a new article of manufacture, a wiper for engraved plates composed of the raw or undressed mucous membrane of animals.

4. As a new article of manufacture, a wiper for engraved plates composed of the raw'mucous membrane of the intestines of herbivorous animals.

5. As a new article of manufacture, a wiper for engraved plates composed of superposed plies of the raw mucous membrane of animale.

6. As a new article of manufacture, a wiper for engraved plates comprising a backing, and a plurality of'su'perposed plies composed of the raw mucous membrane of animals.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

FREDK. E. BLAISDELL. Witnesses:

GEORGE HARRISON, HERBERT A. BEEsToN. 

